setSqlTypeInfo {RODBC}R Documentation

Specify a Mapping of R Types to DBMS Types

Description

Specify or retrieve a mapping of R types to DBMS datatypes.

Usage

setSqlTypeInfo(driver, value)

getSqlTypeInfo(driver)

Arguments

driver A character string specifying the DBMS_name as returned by odbcGetInfo. Optional for getSqlTypeInfo.
value A named list with character values. This should have names "double", "integer", "character" and "logical", and values SQL types appropriate to the DBMS.

Details

This information is used by sqlSave if it creates a table in the DBMS. Mappings are included for MySQL, PostgeSQL, SQLite, Oracle, MS SQL Server, Access, Excel and Dbase drivers.

The SQL types chosen should be nullable to allow NAs to be represented. (Bit and boolean types generally are not.)

Value

For setSqlTypeInfo none.
For getSqlTypeInfo with an argument, a named list. Without an argument, a data frame.

Author(s)

Brian Ripley

See Also

sqlTypeInfo, sqlSave.

Examples

## Not run: 
getSqlTypeInfo()
getSqlTypeInfo("MySQL")
setSqlTypeInfo("SQLServer",
               list(double="float", integer="int",
                    character="varchar(255)", logical="varchar(5)"))
## End(Not run)

[Package RODBC version 1.2-6 Index]